通过改变化学沉积的时间，管的内径可以调变。
By varying the electroless deposition time, inner diameter of the tube can be controlled.
刷头的直径、长短及POM(聚甲醛)管的内径、外径、长短、颜色都可以按照客户的要求加工生产。
The diameter of the brush head, length and POM (POM) tube inner diameter, outside diameter, length, color can be according to customer requirements processing production.
清管和测径用的清管器直径通常比管道内径要过盈5%至8%。
Pigging and caliper with clear pig diameter than pipe diameter usually to interference by 5% to 8%.
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